Tube frame for axminster looms



March 17, 1925.

W. W. ROBERTSON ET AL TUBE FRAME FOR AXMINSTER LOOMS Filed N v'. 19/1923 WM. 5 McLZEMY A-rrvlPNE Ks Patented Mar. 17, 1925 UNITED STATES PATENT OFFICE.

WILLIAM W. ROBERTSON AND WILLIAM E. IVLGCLEARY, OF WORCESTER, MASSACHU- SETTS, ASSIGNORS TO CROMITON & KNOWLES LQOM WORKS,.OF S'AGHUSETTS, A CORPORATION OF MASSACHUSETTS.

WORCESTER, MAS- TUBE FRAME FOR AJillIINSTER LOOMS.

Application filed November 19, 1923. Serial No. 675,462.

To all whom it may concern:

Be it known that we, WILLIAM W. B0B- ER'rsoN, a'citizen of the Dominion of Canada, and WILLIAM E. MOCLEARY, a citizen] fall out of the loom and either damage other.

frames or be damaged themselves. The weight of the tube frames also causes increased wear on the chain engaging parts and this occasionally makes it necessary to replace the worn parts.

One object of our invention is to provide a bracket which is readily detachable from the tube frame by having associated there with a block so positioned as to engage ears formed integrally with the tube frame.

A further object of our invention is to provide the bracket with inclined walls forming a tapered portion to be engaged by the integral ears and so disposed that the taper serves to prevent accidental dislodg ment of the bracket.

A more particular object of the invention is to provide a bracket with a block and a chain engaging spring hook so arranged that the spring overlaps the block to prevent removal thereof from the bracket.

With these and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts hereinafter described and set fort-h in the claims.

In the accompanying drawings, wherein one form of our invention is shown,

Fig. 1 is a front elevation of a portion of a tube frame having our invention applied thereto,

Fig. 2 is an end elevation of the structure shown in Fig. 1, and

Fig. 3 shows in perspective the component parts of our invention detached before assembling.

Referring more particularly to the drawings it will be seen that the tube frame 10 has soldered or otherwise secured thereto an angle platell to which are soldered the yarn tubes 12. Each end of the spool 13 is carried in a spool bearing member 14 the lower end of which is formed as shown in Figs. 2 and 3 with inclined faces 15 and shoulders 16. The lower end of the bearing member 14 is provided with a tapped hole 17 for a purpose to be described.

The chain engaging arm'18 has a portion thereof extending parallel to the spool bearing member and is secured thereto in any manner as by rivets. The lower endof the member 18 is of less width than the upper part as indicated M20 and has shoulders 21 which are in horizontal alignment with shoulders 16 formed on the spool bearing. This reduced portion 20 is ofless width than that portion of the spool bearing lying between the inclined faces 15.and is provided with tapped holes 22 to receive screws 23 by means of which the chain engaging spring hook 24 may be held in place.

A block 25, shown in Fig. 3, has an upper portion 26 of substantially'the same width as reduced portion 20 of the member 18, while the lower end of the block 25 is provided with extensions 27 so proportioned as to give the lower end of the block substantially the same width as the widest portion of the spool bearing member 14.

The tube frame 10 is provided with a pair of ears 30 which extend from the vertical walls of the tube frame and have inbent portions 31 which lie in a plane substantially perpendicular'to the axis of the tube frame.

In assembling the tube frame the lower end of the spool bearing 14 is inserted between the ears 30, with the shoulders 16 resting on the ears 30, after which block 25 is secured to the spool bearing member 14 by means of screw 32 which passes through the block and enters hole 17 The lugs 27 on the block define shoulders 28 which fit closely against the bottom of ears 30 and prevent upward movement of the bracket with member 18, the hook being so proportioned that the lower end thereof overlaps the block and its screw 32 as shown at 34 Fig.- 2 to prevent accidental removal of the block and its screw. The ears 30' are then ham- 7 mered until their inner faces lie against the inclines formed on the spool bearing member.

While We have shown the inclined surfaces "is' et We do not wish to be limited as this construction as the inclines may be omitted without loss of the shoulders 16, since the upper part of the spool bearing is wider than the lower part thereof.

hen it is desired to remove the bracket from the tube frame the spring hook 24 is taken off, after which the 161001; 2'5 may be removed By means of a suitable tool the lower end ofthe spool hearing may then be driven upwardly to spread the ears should the inclined surfaces be" used.

From the foregoing, des ripti'on it Will be seen that we have provided a bracket readily removable from the tube frame but held thereto so as to prevent transverse movement of the lower portion thereof with respect to the frame" in either a. verticalor horizontal direction; that a portion ofthe bracket is provided with inclined faces which assist in holding the bracl'ret to the tube frame should the block and spring; hook work loose;- and that the springhook is so disposed as' to prevent accidental removal ofthe block.-

Having thus described our invention it is apparent that changes and modificationsmay be made therein by those skilled in the art and We do not wish to be limited to the tween the'ears between the bent portion of the ears and the adjacent endof the tube frame,- shoulders formed on said bracket to en age the ears to limit motion of the bracket in one direction, and a removable block secured to the bracket and engaging the" opposite ends ofth'eears to resti" motion' of the bracket in the other direction.

2. In a tube frame for AXm'in'ster looms, a hollow tubular member, supporting bracket therefor, ears forhiedin the tubular member embracing a ortion of said bracket and en aging shoulders thereon and a removable block carried by the bracket and engaging said ears to restrain, mot'ion of'the bracket transversely of the tube frame in one direction. 1

Q; In a tube frame for Axmin'ster looms, a hollow tubular member having ears integ'ifall' tlierevi' ith and a bracket enibraced by said ears and having shoulders engaged by said ears to restrainmotion of the bracket transverse of the tube frame in one direc- 'tiony said bracket having inclined portions to enga e said ears to resist motion of the bracket transverse of the tube frame in the opposite direetion. I,

In testimony whereof we have hereunto afiixed o'ursign-atures. v

VVILLTAM WV. ROBERTSON. WVILLIAM MGCLEARY. 

